Service difficulty report · Valve · Boeing 737890

Difficulty date
May 20, 2010
Submitted
May 24, 2010
Operation
Air carrier
Aircraft
N581AS
Make and model
Boeing 737890
Aircraft serial
35188
Aircraft time
11,518 hours, 3,622 cycles
Part
Valve
Part number
32144464
Part serial
6196
Condition
Failed
Location
Bleed Air Sys
Part time
29,455 hours, 13,542 cycles
Stage of operation
DE
How discovered
O
Nature of condition
J
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

RT BLEED TRIP LIGHT ILLUMINATED AT FL 400 AS THROTTLES RETARDED FOR DESCENT. CHECKLIST ACCOMPLISHED. LIGHT RESET. HIGH STAGE VLV FOUND DEFECTIVE REF FIM 36 10 00 810 801, REPLACED REF MM 36 11 06. NR 2 ENG BLEED AIR REG FAILED SYS HEALTH CHECK. REPLACED BLEED AIR REG. ACCOMP PRECOOLER CONT VLV SYS TEST REF MM 36 12 00. NO DEFECTS NOTED. ACCOMP ENG BLEED AIR SYS HEALTH CHECK PER MM 36 11 00. GROUND VERIFICATION SUCCESSFUL.